900685

2,4,6-Tri(p-tolyl)pyrylium tetrafluoroborate salt

≥95%

• Formula empirica (notazione di Hill): C₂₆H₂₃BF₄O
• Numero CAS: 2713-21-5
• Peso molecolare: 438.26
• Codice UNSPSC: 12161600
• NACRES: NA.22

Proprietà

• Livello qualitativo: 100
• Saggio: ≥95%
• Stato: powder
• Impiego in reazioni chimiche: reagent type: catalyst; reaction type: Photocatalysis
• Punto di fusione: 298-303 °C

Descrizione

Applicazioni

Excitable by blue LEDs, this photocatalyst was reported by the Nicewicz laboratory for catalysis of O-aryl carbamothioates to S-aryl carbamothioates at ambient temperatures, an improvement from the elevated reaction temperatures traditionally needed in the Newman-Kwart rearrangment or palladium catalysis. Effective for scale-up or flow chemistry, this triarylpyrylium salt provides convenient access to thiophenols from phenols.

It can also catalyze visible light-initiated, living cationic polymerization of 4-methoxystyrene with methanol under metal-free conditions.

Product can be used with our line of photoreactors: Including Penn PhD (Z744035) & SynLED 2.0 (Z744080)

Altre note

Ambient-Temperature Newman-Kwart Rearrangement Mediated by Organic Photoredox Catalysis
Cycloaddition Reactions Initiated by Photochemically Excited Pyrylium Salts

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable